rpc call fails during build

Trying to compile tqt3-trinity from the source tarball. The make output:

/usr/include/rpcsvc/yp_prot.h:10:10: fatal error: rpc/rpc.h: No such file or directory
   10 | #include <rpc/rpc.h>
      |          ^~~~~~~~~~~
compilation terminated.
make[2]: *** [Makefile:11007: .obj/release-shared/qprintdialog.o] Error 1
make[2]: Leaving directory '/home/gene/Build/trinity_desktop/dependencies/tqt3-trinity-14.0.8/src'
make[1]: *** [Makefile:40: sub-src] Error 2
make[1]: Leaving directory '/home/gene/Build/trinity_desktop/dependencies/tqt3-trinity-14.0.8'
make: *** [Makefile:8: init] Error 2

I've found lots of online references to this; apparently I am not the only person running into this problem. What I haven't found is a definitive solution.

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